The Parents brand of outlet covers are great -- you press them in the middle to release -- the other ones tear up your nails trying to get them out. We got ours at Target.
We also like the Prince Lionheart brand of rubber edge covering for the coffee table. It works fine and saves from bumps and bruises. There's also corner guards we put under the corner edges of the countertop in the kitchen - I don't remember the brand but we got them at BRU.
We have several different brands of childgates (we also have pets and they work well for both baby and dogs
), but the best one we found for the stairway was from www.onestepahead.com
-- it permanently installs and swings both ways. We got a super extended one for the TV/media area from amazon.com, with a gate in the middle. If you need something like that, PM me and I'll dig up the link.
I know some people don't like childgates but in our case, it's much easier to gate off areas than to risk our child being injured by equipment, etc. It's a personal choice.
We also got a rope ladder from onestepahead.com that we keep in our closet, as my childhood home caught on fire when I was young and I'm paranoid about being trapped on the third floor.
We haven't used any of the cabinet locks that require installation yet but will (we've got a couple of bags of them from my folks and the ILs that they used). They all seem to be pretty much the same, except I've heard the magnetic ones do NOT work. Others here can offfer more on whether that's true, hopefully. We did get one of the ones that is shaped like a skinny, long U and hooks through the handles. It works okay but if she pulled really hard on it, she could get it open.